Thierry Fournier | e726b14 | 2016-02-11 17:57:57 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Lua safe functions |
| 3 | * |
| 4 | * Copyright 2015-2016 Thierry Fournier <tfournier@arpalert.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * |
| 12 | * All the functions in this file runs with a Lua stack, and can |
Thierry Fournier | fb0b546 | 2016-01-21 09:28:58 +0100 | [diff] [blame] | 13 | * return with a longjmp. All of these function must be launched |
| 14 | * in an environment able to catch a longjmp, otherwise a |
| 15 | * critical error can be raised. |
| 16 | */ |
| 17 | #include <lauxlib.h> |
| 18 | #include <lua.h> |
| 19 | #include <lualib.h> |
| 20 | |
Thierry Fournier | b1f4656 | 2016-01-21 09:46:15 +0100 | [diff] [blame] | 21 | #include <common/time.h> |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 22 | #include <common/uri_auth.h> |
Thierry Fournier | b1f4656 | 2016-01-21 09:46:15 +0100 | [diff] [blame] | 23 | |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 24 | #include <types/hlua.h> |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 25 | #include <types/proxy.h> |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 26 | |
Thierry Fournier | 8b0d6e1 | 2016-03-16 18:29:13 +0100 | [diff] [blame] | 27 | #include <proto/dumpstats.h> |
Thierry Fournier | 94ed1c1 | 2016-02-24 08:06:32 +0100 | [diff] [blame] | 28 | #include <proto/proto_http.h> |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 29 | #include <proto/proxy.h> |
| 30 | #include <proto/server.h> |
Thierry Fournier | 94ed1c1 | 2016-02-24 08:06:32 +0100 | [diff] [blame] | 31 | |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 32 | /* Contains the class reference of the concat object. */ |
| 33 | static int class_concat_ref; |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 34 | static int class_proxy_ref; |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 35 | |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 36 | #define STATS_LEN (MAX((int)ST_F_TOTAL_FIELDS, (int)INF_TOTAL_FIELDS)) |
Thierry Fournier | eea77c0 | 2016-03-18 08:47:13 +0100 | [diff] [blame] | 37 | |
| 38 | static struct field stats[STATS_LEN]; |
| 39 | |
Thierry Fournier | 8b0d6e1 | 2016-03-16 18:29:13 +0100 | [diff] [blame] | 40 | /* This function gets a struct field and convert it in Lua |
| 41 | * variable. The variable is pushed at the top of the stak. |
| 42 | */ |
| 43 | int hlua_fcn_pushfield(lua_State *L, struct field *field) |
| 44 | { |
| 45 | /* The lua_Integer is always signed. Its length depends on |
| 46 | * compilation opions, so the followinfg code is conditionned |
| 47 | * by some macros. Windows maros are not supported. |
| 48 | * If the number cannot be represented as integer, we try to |
| 49 | * convert to float. |
| 50 | */ |
| 51 | switch (field_format(field, 0)) { |
| 52 | |
| 53 | case FF_EMPTY: |
| 54 | lua_pushnil(L); |
| 55 | return 1; |
| 56 | |
| 57 | case FF_S32: |
| 58 | /* S32 is always supported. */ |
| 59 | lua_pushinteger(L, field->u.s32); |
| 60 | return 1; |
| 61 | |
| 62 | case FF_U32: |
| 63 | #if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64))) |
| 64 | /* 64 bits case, U32 is always supported */ |
| 65 | lua_pushinteger(L, field->u.u32); |
| 66 | #else |
| 67 | /* 32 bits case, U32 is supported until INT_MAX. */ |
| 68 | if (field->u.u32 > INT_MAX) |
| 69 | lua_pushnumber(L, (lua_Number)field->u.u32); |
| 70 | else |
| 71 | lua_pushinteger(L, field->u.u32); |
| 72 | #endif |
| 73 | return 1; |
| 74 | |
| 75 | case FF_S64: |
| 76 | #if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64))) |
| 77 | /* 64 bits case, S64 is always supported */ |
| 78 | lua_pushinteger(L, field->u.s64); |
| 79 | #else |
| 80 | /* 64 bits case, S64 is supported beetween INT_MIN and INT_MAX */ |
| 81 | if (field->u.s64 < INT_MIN || field->u.s64 > INT_MAX) |
| 82 | lua_pushnumber(L, (lua_Number)field->u.s64); |
| 83 | else |
| 84 | lua_pushinteger(L, (int)field->u.s64); |
| 85 | #endif |
| 86 | return 1; |
| 87 | |
| 88 | case FF_U64: |
| 89 | #if (LUA_MAXINTEGER == LLONG_MAX || ((LUA_MAXINTEGER == LONG_MAX) && (__WORDSIZE == 64))) |
| 90 | /* 64 bits case, U64 is supported until LLONG_MAX */ |
| 91 | if (field->u.u64 > LLONG_MAX) |
| 92 | lua_pushnumber(L, (lua_Number)field->u.u64); |
| 93 | else |
| 94 | lua_pushinteger(L, field->u.u64); |
| 95 | #else |
| 96 | /* 64 bits case, U64 is supported until INT_MAX */ |
| 97 | if (field->u.u64 > INT_MAX) |
| 98 | lua_pushnumber(L, (lua_Number)field->u.u64); |
| 99 | else |
| 100 | lua_pushinteger(L, (int)field->u.u64); |
| 101 | #endif |
| 102 | return 1; |
| 103 | |
| 104 | case FF_STR: |
| 105 | lua_pushstring(L, field->u.str); |
| 106 | return 1; |
| 107 | |
| 108 | default: |
| 109 | break; |
| 110 | } |
| 111 | |
| 112 | /* Default case, never reached. */ |
| 113 | lua_pushnil(L); |
| 114 | return 1; |
| 115 | } |
| 116 | |
Thierry Fournier | 94ed1c1 | 2016-02-24 08:06:32 +0100 | [diff] [blame] | 117 | /* Some string are started or terminated by blank chars, |
| 118 | * this function removes the spaces, tabs, \r and |
| 119 | * \n at the begin and at the end of the string "str", and |
| 120 | * push the result in the lua stack. |
| 121 | * Returns a pointer to the Lua internal copy of the string. |
| 122 | */ |
| 123 | const char *hlua_pushstrippedstring(lua_State *L, const char *str) |
| 124 | { |
| 125 | const char *p; |
| 126 | const char *e; |
| 127 | |
| 128 | for (p = str; HTTP_IS_LWS(*p); p++); |
| 129 | for (e = p + strlen(p) - 1; e > p && HTTP_IS_LWS(*e); e--); |
| 130 | |
| 131 | return lua_pushlstring(L, p, e - p); |
| 132 | } |
| 133 | |
Thierry Fournier | ddd8988 | 2016-02-22 19:52:08 +0100 | [diff] [blame] | 134 | /* The three following functions are useful for adding entries |
| 135 | * in a table. These functions takes a string and respectively an |
| 136 | * integer, a string or a function and add it to the table in the |
| 137 | * top of the stack. |
| 138 | * |
| 139 | * These functions throws an error if no more stack size is |
| 140 | * available. |
| 141 | */ |
| 142 | void hlua_class_const_int(lua_State *L, const char *name, int value) |
| 143 | { |
Thierry Fournier | ddd8988 | 2016-02-22 19:52:08 +0100 | [diff] [blame] | 144 | lua_pushstring(L, name); |
| 145 | lua_pushinteger(L, value); |
| 146 | lua_rawset(L, -3); |
| 147 | } |
| 148 | void hlua_class_const_str(lua_State *L, const char *name, const char *value) |
| 149 | { |
Thierry Fournier | ddd8988 | 2016-02-22 19:52:08 +0100 | [diff] [blame] | 150 | lua_pushstring(L, name); |
| 151 | lua_pushstring(L, value); |
| 152 | lua_rawset(L, -3); |
| 153 | } |
| 154 | void hlua_class_function(lua_State *L, const char *name, int (*function)(lua_State *L)) |
| 155 | { |
Thierry Fournier | ddd8988 | 2016-02-22 19:52:08 +0100 | [diff] [blame] | 156 | lua_pushstring(L, name); |
| 157 | lua_pushcclosure(L, function, 0); |
| 158 | lua_rawset(L, -3); |
| 159 | } |
| 160 | |
| 161 | /* This function returns a string containg the HAProxy object name. */ |
| 162 | int hlua_dump_object(struct lua_State *L) |
| 163 | { |
| 164 | const char *name = (const char *)lua_tostring(L, lua_upvalueindex(1)); |
| 165 | lua_pushfstring(L, "HAProxy class %s", name); |
| 166 | return 1; |
| 167 | } |
| 168 | |
Thierry Fournier | 45e78d7 | 2016-02-19 18:34:46 +0100 | [diff] [blame] | 169 | /* This function register a table as metatable and. It names |
| 170 | * the metatable, and returns the associated reference. |
| 171 | * The original table is poped from the top of the stack. |
| 172 | * "name" is the referenced class name. |
| 173 | */ |
| 174 | int hlua_register_metatable(struct lua_State *L, char *name) |
| 175 | { |
| 176 | /* Check the type of the top element. it must be |
| 177 | * a table. |
| 178 | */ |
| 179 | if (lua_type(L, -1) != LUA_TTABLE) |
| 180 | luaL_error(L, "hlua_register_metatable() requires a type Table " |
| 181 | "in the top of the stack"); |
| 182 | |
| 183 | /* Add the __tostring function which identify the |
| 184 | * created object. |
| 185 | */ |
| 186 | lua_pushstring(L, "__tostring"); |
| 187 | lua_pushstring(L, name); |
| 188 | lua_pushcclosure(L, hlua_dump_object, 1); |
| 189 | lua_rawset(L, -3); |
| 190 | |
| 191 | /* Register a named entry for the table. The table |
| 192 | * reference is copyed first because the function |
| 193 | * lua_setfield() pop the entry. |
| 194 | */ |
| 195 | lua_pushvalue(L, -1); |
| 196 | lua_setfield(L, LUA_REGISTRYINDEX, name); |
| 197 | |
| 198 | /* Creates the reference of the object. The |
| 199 | * function luaL_ref pop the top of the stack. |
| 200 | */ |
| 201 | return luaL_ref(L, LUA_REGISTRYINDEX); |
| 202 | } |
| 203 | |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 204 | /* Return an object of the expected type, or throws an error. */ |
| 205 | void *hlua_checkudata(lua_State *L, int ud, int class_ref) |
| 206 | { |
| 207 | void *p; |
Thierry Fournier | 5351827 | 2016-01-27 10:34:09 +0100 | [diff] [blame] | 208 | int ret; |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 209 | |
| 210 | /* Check if the stack entry is an array. */ |
| 211 | if (!lua_istable(L, ud)) |
Thierry Fournier | 5351827 | 2016-01-27 10:34:09 +0100 | [diff] [blame] | 212 | luaL_argerror(L, ud, NULL); |
| 213 | |
| 214 | /* pop the metatable of the referencecd object. */ |
| 215 | if (!lua_getmetatable(L, ud)) |
| 216 | luaL_argerror(L, ud, NULL); |
| 217 | |
| 218 | /* pop the expected metatable. */ |
| 219 | lua_rawgeti(L, LUA_REGISTRYINDEX, class_ref); |
| 220 | |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 221 | /* Check if the metadata have the expected type. */ |
Thierry Fournier | 5351827 | 2016-01-27 10:34:09 +0100 | [diff] [blame] | 222 | ret = lua_rawequal(L, -1, -2); |
| 223 | lua_pop(L, 2); |
| 224 | if (!ret) |
| 225 | luaL_argerror(L, ud, NULL); |
| 226 | |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 227 | /* Push on the stack at the entry [0] of the table. */ |
| 228 | lua_rawgeti(L, ud, 0); |
Thierry Fournier | 5351827 | 2016-01-27 10:34:09 +0100 | [diff] [blame] | 229 | |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 230 | /* Check if this entry is userdata. */ |
| 231 | p = lua_touserdata(L, -1); |
| 232 | if (!p) |
Thierry Fournier | 5351827 | 2016-01-27 10:34:09 +0100 | [diff] [blame] | 233 | luaL_argerror(L, ud, NULL); |
| 234 | |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 235 | /* Remove the entry returned by lua_rawgeti(). */ |
| 236 | lua_pop(L, 1); |
Thierry Fournier | 5351827 | 2016-01-27 10:34:09 +0100 | [diff] [blame] | 237 | |
Thierry Fournier | 9e7e3ea | 2016-01-27 09:55:30 +0100 | [diff] [blame] | 238 | /* Return the associated struct. */ |
| 239 | return p; |
| 240 | } |
| 241 | |
Thierry Fournier | b1f4656 | 2016-01-21 09:46:15 +0100 | [diff] [blame] | 242 | /* This function return the current date at epoch format in milliseconds. */ |
| 243 | int hlua_now(lua_State *L) |
| 244 | { |
| 245 | lua_newtable(L); |
| 246 | lua_pushstring(L, "sec"); |
| 247 | lua_pushinteger(L, now.tv_sec); |
| 248 | lua_rawset(L, -3); |
| 249 | lua_pushstring(L, "usec"); |
| 250 | lua_pushinteger(L, now.tv_usec); |
| 251 | lua_rawset(L, -3); |
| 252 | return 1; |
| 253 | } |
| 254 | |
Thierry Fournier | 1550d5d | 2016-01-21 09:35:41 +0100 | [diff] [blame] | 255 | /* This functions expects a Lua string as HTTP date, parse it and |
| 256 | * returns an integer containing the epoch format of the date, or |
| 257 | * nil if the parsing fails. |
| 258 | */ |
| 259 | static int hlua_parse_date(lua_State *L, int (*fcn)(const char *, int, struct tm*)) |
| 260 | { |
| 261 | const char *str; |
| 262 | size_t len; |
| 263 | struct tm tm; |
| 264 | time_t time; |
| 265 | |
| 266 | str = luaL_checklstring(L, 1, &len); |
| 267 | |
| 268 | if (!fcn(str, len, &tm)) { |
| 269 | lua_pushnil(L); |
| 270 | return 1; |
| 271 | } |
| 272 | |
| 273 | /* This function considers the content of the broken-down time |
| 274 | * is exprimed in the UTC timezone. timegm don't care about |
| 275 | * the gnu variable tm_gmtoff. If gmtoff is set, or if you know |
| 276 | * the timezone from the broken-down time, it must be fixed |
| 277 | * after the conversion. |
| 278 | */ |
| 279 | time = timegm(&tm); |
| 280 | if (time == -1) { |
| 281 | lua_pushnil(L); |
| 282 | return 1; |
| 283 | } |
| 284 | |
| 285 | lua_pushinteger(L, (int)time); |
| 286 | return 1; |
| 287 | } |
| 288 | static int hlua_http_date(lua_State *L) |
| 289 | { |
| 290 | return hlua_parse_date(L, parse_http_date); |
| 291 | } |
| 292 | static int hlua_imf_date(lua_State *L) |
| 293 | { |
| 294 | return hlua_parse_date(L, parse_imf_date); |
| 295 | } |
| 296 | static int hlua_rfc850_date(lua_State *L) |
| 297 | { |
| 298 | return hlua_parse_date(L, parse_rfc850_date); |
| 299 | } |
| 300 | static int hlua_asctime_date(lua_State *L) |
| 301 | { |
| 302 | return hlua_parse_date(L, parse_asctime_date); |
| 303 | } |
| 304 | |
Thierry Fournier | eea77c0 | 2016-03-18 08:47:13 +0100 | [diff] [blame] | 305 | static int hlua_get_info(lua_State *L) |
| 306 | { |
| 307 | int i; |
| 308 | |
| 309 | stats_fill_info(stats, STATS_LEN); |
| 310 | |
| 311 | lua_newtable(L); |
| 312 | for (i=0; i<INF_TOTAL_FIELDS; i++) { |
| 313 | lua_pushstring(L, info_field_names[i]); |
| 314 | hlua_fcn_pushfield(L, &stats[i]); |
| 315 | lua_settable(L, -3); |
| 316 | } |
| 317 | return 1; |
| 318 | } |
| 319 | |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 320 | static struct hlua_concat *hlua_check_concat(lua_State *L, int ud) |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 321 | { |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 322 | return (struct hlua_concat *)(hlua_checkudata(L, ud, class_concat_ref)); |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | static int hlua_concat_add(lua_State *L) |
| 326 | { |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 327 | struct hlua_concat *b; |
| 328 | char *buffer; |
| 329 | char *new; |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 330 | const char *str; |
| 331 | size_t l; |
| 332 | |
| 333 | /* First arg must be a concat object. */ |
| 334 | b = hlua_check_concat(L, 1); |
| 335 | |
| 336 | /* Second arg must be a string. */ |
| 337 | str = luaL_checklstring(L, 2, &l); |
| 338 | |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 339 | /* Get the buffer. */ |
| 340 | lua_rawgeti(L, 1, 1); |
| 341 | buffer = lua_touserdata(L, -1); |
| 342 | lua_pop(L, 1); |
| 343 | |
| 344 | /* Update the buffer size if it s required. The old buffer |
| 345 | * is crushed by the new in the object array, so it will |
| 346 | * be deleted by the GC. |
| 347 | * Note that in the first loop, the "new" variable is only |
| 348 | * used as a flag. |
| 349 | */ |
| 350 | new = NULL; |
| 351 | while (b->size - b->len < l) { |
| 352 | b->size += HLUA_CONCAT_BLOCSZ; |
| 353 | new = buffer; |
| 354 | } |
| 355 | if (new) { |
| 356 | new = lua_newuserdata(L, b->size); |
| 357 | memcpy(new, buffer, b->len); |
| 358 | lua_rawseti(L, 1, 1); |
| 359 | buffer = new; |
| 360 | } |
| 361 | |
| 362 | /* Copy string, and update metadata. */ |
| 363 | memcpy(buffer + b->len, str, l); |
| 364 | b->len += l; |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 365 | return 0; |
| 366 | } |
| 367 | |
| 368 | static int hlua_concat_dump(lua_State *L) |
| 369 | { |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 370 | struct hlua_concat *b; |
| 371 | char *buffer; |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 372 | |
| 373 | /* First arg must be a concat object. */ |
| 374 | b = hlua_check_concat(L, 1); |
| 375 | |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 376 | /* Get the buffer. */ |
| 377 | lua_rawgeti(L, 1, 1); |
| 378 | buffer = lua_touserdata(L, -1); |
| 379 | lua_pop(L, 1); |
| 380 | |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 381 | /* Push the soncatenated strng in the stack. */ |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 382 | lua_pushlstring(L, buffer, b->len); |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 383 | return 1; |
| 384 | } |
| 385 | |
| 386 | int hlua_concat_new(lua_State *L) |
| 387 | { |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 388 | struct hlua_concat *b; |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 389 | |
| 390 | lua_newtable(L); |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 391 | b = (struct hlua_concat *)lua_newuserdata(L, sizeof(*b)); |
| 392 | b->size = HLUA_CONCAT_BLOCSZ; |
| 393 | b->len = 0; |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 394 | lua_rawseti(L, -2, 0); |
Thierry Fournier | 49d4842 | 2016-02-19 12:09:29 +0100 | [diff] [blame] | 395 | lua_newuserdata(L, HLUA_CONCAT_BLOCSZ); |
| 396 | lua_rawseti(L, -2, 1); |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 397 | |
| 398 | lua_rawgeti(L, LUA_REGISTRYINDEX, class_concat_ref); |
| 399 | lua_setmetatable(L, -2); |
| 400 | |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 401 | return 1; |
| 402 | } |
| 403 | |
| 404 | static int concat_tostring(lua_State *L) |
| 405 | { |
| 406 | const void *ptr = lua_topointer(L, 1); |
| 407 | lua_pushfstring(L, "Concat object: %p", ptr); |
| 408 | return 1; |
| 409 | } |
| 410 | |
| 411 | static int hlua_concat_init(lua_State *L) |
| 412 | { |
| 413 | /* Creates the buffered concat object. */ |
| 414 | lua_newtable(L); |
| 415 | |
| 416 | lua_pushstring(L, "__tostring"); |
| 417 | lua_pushcclosure(L, concat_tostring, 0); |
| 418 | lua_settable(L, -3); |
| 419 | |
| 420 | lua_pushstring(L, "__index"); /* Creates the index entry. */ |
| 421 | lua_newtable(L); /* The "__index" content. */ |
| 422 | |
| 423 | lua_pushstring(L, "add"); |
| 424 | lua_pushcclosure(L, hlua_concat_add, 0); |
| 425 | lua_settable(L, -3); |
| 426 | |
| 427 | lua_pushstring(L, "dump"); |
| 428 | lua_pushcclosure(L, hlua_concat_dump, 0); |
| 429 | lua_settable(L, -3); |
| 430 | |
| 431 | lua_settable(L, -3); /* Sets the __index entry. */ |
| 432 | class_concat_ref = luaL_ref(L, LUA_REGISTRYINDEX); |
| 433 | |
| 434 | return 1; |
| 435 | } |
| 436 | |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 437 | int hlua_fcn_new_proxy(lua_State *L, struct proxy *px) |
| 438 | { |
| 439 | lua_newtable(L); |
| 440 | |
| 441 | /* Pop a class sesison metatable and affect it to the userdata. */ |
| 442 | lua_rawgeti(L, LUA_REGISTRYINDEX, class_proxy_ref); |
| 443 | lua_setmetatable(L, -2); |
| 444 | |
| 445 | lua_pushlightuserdata(L, px); |
| 446 | lua_rawseti(L, -2, 0); |
| 447 | return 1; |
| 448 | } |
| 449 | |
| 450 | static struct proxy *hlua_check_proxy(lua_State *L, int ud) |
| 451 | { |
| 452 | return (struct proxy *)(hlua_checkudata(L, ud, class_proxy_ref)); |
| 453 | } |
| 454 | |
| 455 | int hlua_proxy_pause(lua_State *L) |
| 456 | { |
| 457 | struct proxy *px; |
| 458 | |
| 459 | px = hlua_check_proxy(L, 1); |
| 460 | pause_proxy(px); |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | int hlua_proxy_resume(lua_State *L) |
| 465 | { |
| 466 | struct proxy *px; |
| 467 | |
| 468 | px = hlua_check_proxy(L, 1); |
| 469 | resume_proxy(px); |
| 470 | return 0; |
| 471 | } |
| 472 | |
| 473 | int hlua_proxy_stop(lua_State *L) |
| 474 | { |
| 475 | struct proxy *px; |
| 476 | |
| 477 | px = hlua_check_proxy(L, 1); |
| 478 | stop_proxy(px); |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | int hlua_proxy_get_cap(lua_State *L) |
| 483 | { |
| 484 | struct proxy *px; |
| 485 | const char *str; |
| 486 | |
| 487 | px = hlua_check_proxy(L, 1); |
| 488 | str = proxy_cap_str(px->cap); |
| 489 | lua_pushstring(L, str); |
| 490 | return 1; |
| 491 | } |
| 492 | |
| 493 | int hlua_proxy_get_stats(lua_State *L) |
| 494 | { |
| 495 | struct proxy *px; |
| 496 | int i; |
| 497 | |
| 498 | px = hlua_check_proxy(L, 1); |
| 499 | if (px->cap & PR_CAP_BE) |
| 500 | stats_fill_be_stats(px, ST_SHLGNDS, stats, STATS_LEN); |
| 501 | else |
| 502 | stats_fill_fe_stats(px, stats, STATS_LEN); |
| 503 | lua_newtable(L); |
| 504 | for (i=0; i<ST_F_TOTAL_FIELDS; i++) { |
| 505 | lua_pushstring(L, stat_field_names[i]); |
| 506 | hlua_fcn_pushfield(L, &stats[i]); |
| 507 | lua_settable(L, -3); |
| 508 | } |
| 509 | return 1; |
| 510 | } |
| 511 | |
| 512 | int hlua_proxy_get_mode(lua_State *L) |
| 513 | { |
| 514 | struct proxy *px; |
| 515 | const char *str; |
| 516 | |
| 517 | px = hlua_check_proxy(L, 1); |
| 518 | str = proxy_mode_str(px->mode); |
| 519 | lua_pushstring(L, str); |
| 520 | return 1; |
| 521 | } |
| 522 | |
| 523 | int hlua_proxy_shut_bcksess(lua_State *L) |
| 524 | { |
| 525 | struct proxy *px; |
| 526 | |
| 527 | px = hlua_check_proxy(L, 1); |
| 528 | srv_shutdown_backup_streams(px, SF_ERR_KILLED); |
| 529 | return 0; |
| 530 | } |
| 531 | |
Thierry Fournier | 3d4a675 | 2016-02-19 20:53:30 +0100 | [diff] [blame] | 532 | int hlua_fcn_post_init(lua_State *L) |
| 533 | { |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 534 | struct proxy *px; |
| 535 | |
| 536 | /* get core array. */ |
| 537 | if (lua_getglobal(L, "core") != LUA_TTABLE) |
| 538 | lua_error(L); |
| 539 | |
| 540 | /* Create proxies entry. */ |
| 541 | lua_pushstring(L, "proxies"); |
| 542 | lua_newtable(L); |
| 543 | |
| 544 | /* List all proxies. */ |
| 545 | for (px = proxy; px; px = px->next) { |
| 546 | lua_pushstring(L, px->id); |
| 547 | hlua_fcn_new_proxy(L, px); |
| 548 | lua_settable(L, -3); |
| 549 | } |
| 550 | |
| 551 | /* push "proxies" in "core" */ |
| 552 | lua_settable(L, -3); |
| 553 | |
Thierry Fournier | 3d4a675 | 2016-02-19 20:53:30 +0100 | [diff] [blame] | 554 | return 1; |
| 555 | } |
| 556 | |
Thierry Fournier | fb0b546 | 2016-01-21 09:28:58 +0100 | [diff] [blame] | 557 | int hlua_fcn_reg_core_fcn(lua_State *L) |
| 558 | { |
Thierry Fournier | 1de1659 | 2016-01-27 09:49:07 +0100 | [diff] [blame] | 559 | if (!hlua_concat_init(L)) |
| 560 | return 0; |
| 561 | |
Thierry Fournier | 4f99b27 | 2016-02-22 08:40:02 +0100 | [diff] [blame] | 562 | hlua_class_function(L, "now", hlua_now); |
| 563 | hlua_class_function(L, "http_date", hlua_http_date); |
| 564 | hlua_class_function(L, "imf_date", hlua_imf_date); |
| 565 | hlua_class_function(L, "rfc850_date", hlua_rfc850_date); |
| 566 | hlua_class_function(L, "asctime_date", hlua_asctime_date); |
| 567 | hlua_class_function(L, "concat", hlua_concat_new); |
Thierry Fournier | eea77c0 | 2016-03-18 08:47:13 +0100 | [diff] [blame] | 568 | hlua_class_function(L, "get_info", hlua_get_info); |
Thierry Fournier | 4f99b27 | 2016-02-22 08:40:02 +0100 | [diff] [blame] | 569 | |
Thierry Fournier | f61aa63 | 2016-02-19 20:56:00 +0100 | [diff] [blame^] | 570 | /* Create proxy object. */ |
| 571 | lua_newtable(L); |
| 572 | lua_pushstring(L, "__index"); |
| 573 | lua_newtable(L); |
| 574 | hlua_class_function(L, "pause", hlua_proxy_pause); |
| 575 | hlua_class_function(L, "resume", hlua_proxy_resume); |
| 576 | hlua_class_function(L, "stop", hlua_proxy_stop); |
| 577 | hlua_class_function(L, "shut_bcksess", hlua_proxy_shut_bcksess); |
| 578 | hlua_class_function(L, "get_cap", hlua_proxy_get_cap); |
| 579 | hlua_class_function(L, "get_mode", hlua_proxy_get_mode); |
| 580 | hlua_class_function(L, "get_stats", hlua_proxy_get_stats); |
| 581 | lua_settable(L, -3); /* -> META["__index"] = TABLE */ |
| 582 | class_proxy_ref = hlua_register_metatable(L, CLASS_PROXY); |
| 583 | |
Thierry Fournier | 1550d5d | 2016-01-21 09:35:41 +0100 | [diff] [blame] | 584 | return 5; |
Thierry Fournier | fb0b546 | 2016-01-21 09:28:58 +0100 | [diff] [blame] | 585 | } |